John Piper often speaks of Jonathan Edwards and C.S. Lewis as his greatest influences. These men have had a great impact upon the church in many different ways, but both of them had a way of combining both God's glory and human joy into one experience. This quality is something immensely apparent in Piper's own sermons and books. "God is most glorified in us when we are most satisfied in him." That is the underlying theme in everything Piper preaches and writes. It is a truth that had a paradigm shifting effect upon the way he viewed God. It has had that same effect upon me. And it will almost certainly have that same effect upon you if you find yourself believing that God's glory and your joy are fundamentally at odds with one another.

"God is glorified within Himself these two ways: 1. By appearing...to Himself in His own perfect idea [of Himself], or in His Son, who is the brightness of His glory. 2. By enjoying and delighting in Himself, by flowing forth in infinite love and delight toward Himself, or in His Holy Spirit... So God glorifies Himself toward the creatures in two ways: 1. By appearing to their understanding. 2. In communicating Himself to their heart, and in their rejoicing and delighting in, and enjoying, the manifestation which He makes of Himself... God is glorified not only by His glory’s being seen, but by its being rejoiced in. When those that see it delight in it, God is more glorified than if they only see it. His glory is then received by the whole soul, both by the understanding and the heart. God made the world that he might communicate, and the creature receive his glory; and that it might [be] received both by the mind and the heart. He that testifies his idea of God’s glory [doesn’t] glorify God so much as he that testifies also his approbation of it and his delight in it."

~ Jonathan Edwards, End for Which God Created the World.

"If you asked twenty good men to-day what they thought the highest of the virtues, nineteen of them would reply, Unselfishness. But if you asked almost any of the great Christians of old he would have replied, Love. You see what has happened? A negative term has been substituted for a positive, and this is of more than philological importance. The negative ideal of Unselfishness carries with it the suggestion not primarily of securing good things for others, but of going without them ourselves, as if our abstinence and not their happiness was the important point. I do not think this is the Christian virtue of Love. The New Testament has lots to say about self-denial, but not about self-denial as an end in itself. We are told to deny ourselves and to take up our crosses in order that we may follow Christ; and nearly every description of what we shall ultimately find if we do so contains an appeal to desire. If there lurks in most modern minds the notion that to desire our own good and earnestly to hope for the enjoyment of it is a bad thing, I submit that this notion has crept in from Kant and the Stoics and is no part of the Christian faith. Indeed, if we consider the unblushing promises of reward and the staggering nature of the rewards promised in the Gospels, it would seem that Our Lord finds our desires, not too strong, but too weak. We are half-hearted creatures, fooling about with drink and sex and ambition when infinite joy is offered us, like an ignorant child who wants to go on making mud pies in a slum because he cannot imagine what is meant by the offer of a holiday at the sea. We are far too easily pleased. "

~ C.S. Lewis, The Weight of Glory.

"My shortest summary of Christian Hedonism is: God is most glorified in us when we are most satisfied in him. We all make a god out of what we take the most pleasure in. Christian Hedonists want to make God their God by seeking after the greatest pleasure—pleasure in him. By Christian Hedonism, we do not mean that our happiness is the highest good. We mean that pursuing the highest good will always result in our greatest happiness in the end. We should pursue this happiness, and pursue it with all our might. The desire to be happy is a proper motive for every good deed, and if you abandon the pursuit of your own joy you cannot love man or please God."

~ John Piper, We Want You to be a Christian Hedonist!